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WorksheetsPopulations Unit Review
Total questions: 50
Worksheet time: 25mins
Name
Class
Date
1.
Professionals who study and make predictions about human populations are called
a)
stenographers.
b)
demographers.
c)
geologists.
d)
populists.
2.
It took 50 years for Earth�s human population to double from 1 billion to 2 billion. How long did it take for the population to double again to 4 billion?
a)
100 years
b)
75 years
c)
44 years
d)
25 years
3.
Which factor contributed most to the exponential growth of the human population?
a)
more food, better hygiene
b)
higher birth rates
c)
higher fertility rates
d)
increased immigration
4.
A population pyramid is created by
a)
studying a group of people and noting when each member dies.
b)
graphing the distribution of ages in a population at a specific time.
c)
calculating the number of children a woman gives birth to in her lifetime.
d)
estimating the demand for services within a community.
5.
Educating women worldwide has lowered birthrates partly because
a)
educated women need to bear many children to ensure that some will survive.
b)
educated women may learn family-planning techniques.
c)
educated women contribute less to their family income.
d)
All of the above
6.
Human population growth was most rapid during which period of human history?
a)
Ice Ages
b)
Stone Ages
c)
Bronze and Iron Ages
d)
Modern Age
7.
The 1991 cholera outbreak in Lima, Peru was caused by
a)
lack of clean water.
b)
inadequate medical care.
c)
widespread malnutrition.
d)
rats and other rodents.
8.
Because birth rates have begun to fall, Earth�s population will
a)
soon stabilize at the level it is today�about 6 billion.
b)
begin to decrease until it reaches 5 billion.
c)
increase for a short time and then decrease to current levels.
d)
stabilize somewhere around 9 billion by 2050.
9.
Growth rates for different parts of the world vary depending on the level of development of the region. Which region is experiencing the biggest increase in population?
a)
Europe
b)
North America
c)
Asia
d)
Australia
10.
Which of the following makes it difficult to reduce population growth?
a)
High literacy rates result in women wanting to have more children.
b)
Population sizes will not decline until some people start having to do without food and other necessities of life.
c)
Many people live in cities, where large families are an advantage.
d)
Many people have low literacy and limited access to healthcare.
11.
Which of the following is not a strategy that could slow population growth?
a)
public advertising
b)
economic incentives
c)
legal punishments
d)
limiting education for women
12.
An increase in waterborne diseases could possibly be alleviated by
a)
adequate sewage treatment facilities for growing populations.
b)
very rapid growth of large cities.
c)
sufficient fuelwood.
d)
Both (a) and (b)
13.
Which of the following is true of human demographic trends
a)
In preindustrial societies, birth rates are low, and the population grows rapidly.
b)
When the average number of children born to each woman falls, the total population always increases.
c)
When birth rates and death rates are both high, the population grows slowly, if at all.
d)
Death rates rise in the third stage of the demographic transition.
14.
Between 1880 and 1930 human population doubled due to
a)
the Industrial revolution.
b)
a combination of high birth rates and low death rates.
c)
improvements in societal infrastructure and services.
d)
All of the above
15.
Countries that have entered the third stage of demographic transition are most probably characterized by
a)
weak or developing economies.
b)
death rates that far exceed birth rates.
c)
social conditions that favor smaller families.
d)
populations with a high proportion of young people.
16.
Which of the following is a reason that wood is considered a limited resource in many developing countries
a)
Wood is used in place of money to buy food.
b)
Fuelwood allows people to purify their water by boiling it.
c)
Excess wood is used to construct shantytowns.
d)
People cut down trees faster than they can grow.
17.
During Stage 2 of a population�s demographic transition, the death rate
a)
increases.
b)
decreases.
c)
remains the same.
d)
is zero.
18.
Countries with high growth rates usually have an age structure that has
a)
an even distribution over all ages.
b)
more older people than young people.
c)
more younger people than older people.
d)
more middle-aged people than younger people.
19.
Which of the following diseases is often spread through unsafe public water sources?
a)
dysentery
b)
influenza
c)
chicken pox
d)
AIDS
20.
Scientists predict population sizes by using
a)
survivorship, migration, life expectancy, and replacement structure.
b)
age structure, fertility rate, and migration.
c)
replacement rate, fertility rate, age rates, and survivorship.
d)
age structure, survivorship, fertility rate, and migration.
21.
Which of the following would not cause population to decrease in a region?
a)
increased immigration
b)
increased emigration
c)
decreased fertility rates
d)
decreased survivorship
22.
Which of the following is not described by the model of demographic transition?
a)
life expectancy
b)
education of women
c)
immigration
d)
industrialization
23.
Less-developed countries suffer more from rapid population growth because they are less likely to have the _____ to support the population.
a)
fertility rates
b)
cultural values
c)
infrastructure
d)
family-planning methods
24.
Populations are growing more rapidly in
a)
Italy.
b)
Canada.
c)
Japan.
d)
Peru.
25.
World population growth will eventually stop when
a)
the population reaches 9 billion.
b)
most countries have replacement-level fertility rates.
c)
most countries have higher death rates.
d)
the worldwide infant mortality rate increases.
26.
Thick fur on deer is not an example of coevolution. Why?
a)
because thick fur is an adaptation
b)
because deer with thick fur live longer
c)
because thick fur evolved in response to a cold climate, not in response to other organisms
d)
because in the lowlands, where the climate was sunny and warm, deer that did not have thick fur became separated from other deer that did have thick fur
27.
An example of a population is
a)
all trees in a forest.
b)
all maple trees in a forest.
c)
all plants in a forest.
d)
all animals in a forest.
28.
The density of a population is
a)
the number of individuals born every year.
b)
the proportion of males and females.
c)
the number of individuals living in cities.
d)
the number of individuals per unit area.
29.
Each of the following is an example of a parasite except
a)
a roundworm in a human�s intestine.
b)
a cow in a pasture.
c)
a tick on a cat.
d)
mistletoe on a tree.
30.
The relationship between a Canadian lynx and a snowshoe hare is an example of
a)
parasite and host.
b)
predator and prey.
c)
competition.
d)
mutualism.
31.
In which of the following relationships is neither species harmed?
a)
public advertising
b)
competition
c)
parasitism
d)
commensalism
32.
Which of the following populations has a random dispersion?
a)
adequate sewage treatment facilities for growing populations.
b)
pine trees in a pine forest
c)
herd of bison
d)
solitary snakes in a desert
33.
Which of the following would most likely cause a large number of density-independent deaths in a population?
a)
In preindustrial societies, birth rates are low, and the population grows rapidly.
b)
disease-carrying insects
c)
predators
d)
limited resources
34.
Which of the following organisms has the highest reproductive potential?
a)
the Industrial revolution.
b)
elephants
c)
bacteria
d)
humans
35.
A species of plant has exponential growth after it is introduced into an area where it has never lived. Which statement best describes exponential growth?
a)
weak or developing economies.
b)
The population immediately decreases.
c)
Within a few years the population increases dramatically.
d)
The species� reproductive potential declines.
36.
The relationship between acacia trees and the ants that live on them is an example of
a)
Wood is used in place of money to buy food.
b)
mutualism.
c)
parasitism.
d)
predation.
37.
The number of wild horses per square kilometer in a prairie is the horse populations
a)
increases.
b)
dispersion.
c)
size.
d)
birth rate.
38.
A female dog�s niche includes all of the following except
a)
an even distribution over all ages.
b)
the number of puppies the dog has.
c)
how the dog protects its owners.
d)
the neighbor�s enclosed yard.
39.
If over a long period of time, each pair of adults in a population had only two offspring and the offspring lived to reproduce, the population would
a)
dysentery
b)
shrink.
c)
remain the same.
d)
disperse randomly.
40.
Which of the following has the greatest effect on reproductive potential?
a)
survivorship, migration, life expectancy, and replacement structure.
b)
reproducing more often
c)
having a longer life span
d)
reproducing earlier in life
41.
A true statement about parasitism is that parasites
a)
increased immigration
b)
do not live on or in their hosts� bodies.
c)
are always animals and never plants.
d)
immediately kill their hosts.
42.
Which of the following is not an example of exponential growth?
a)
life expectancy
b)
reindeer of the Pribilof Islands after eating most of the lichens
c)
a bank account that earns interest
d)
mold appearing on bread overnight
43.
The carrying capacity of an environment for a particular species at a particular time is determined by the
a)
fertility rates
b)
distribution of the population.
c)
reproductive potential of the species.
d)
supply of the most limited resources.
44.
Which of the following statements explains why the growth of orchids on the high branches of tropical trees is an example of commensalism?
a)
Italy.
b)
The trees are neither benefited nor harmed.
c)
The orchids keep parasites away.
d)
The trees receive nutrients from the orchids.
45.
Which of the following statements is not correct?
a)
the population reaches 9 billion.
b)
Yucca moths and yucca plants have a symbiotic relationship.
c)
Symbiosis is a relationship in which two organisms live apart.
d)
Coyotes and foxes are competitors because they feed on the same kinds of animals.
46.
Which of the following is one of the main properties used to describe a population?
a)
because thick fur is an adaptation
b)
color of individuals
c)
number of species
d)
kind of adaptations
47.
Which of the following statements is correct?
a)
all trees in a forest.
b)
An organism�s habitat is a location.
c)
Habitat and niche are the same thing.
d)
An organism�s niche is outside its habitat.
48.
Competition for food cannot occur
a)
the number of individuals born every year.
b)
among members of the same population.
c)
among populations whose niches overlap.
d)
between animals from two different ecosystems.
49.
Which of the following reproductive situations will limit a population�s biotic potential?
a)
a roundworm in a human�s intestine.
b)
the maximum number of offspring each individual can produce
c)
the number of interactions each individual has
d)
the size of offspring each individual can produce
50.
The difference between a predator and a parasite is that a predator
a)
parasite and host.
b)
benefits from another organism.
c)
lives in or on a host.
d)
harms another organism.
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